N2HJD/R Megaplex Repeater System

This is information that will help you to understand the N2HJD repeater system. The repeater system has six amateur radio bands, including 10 Meters. It is on 10 sites in the Greater Rochester area. In fact the system covers such a large area that I have made a map of the sites. I am one of the main Control Operators of the system. The complex nature of the system is what got it the name "Megaplex". It includes an IRLP node (node number 7250), DVR, 2 Meter Remote Base, Autopatch, Reverse Patch, and National Weather Service Link. To keep everything linked together there are 21 transmitters and 26 receivers. The system also has different modes of operation. I have also set up audio files of the courtesy tones on the system. Here is a table of the frequencies, locations, and courtesy tone descriptions. Also please visit the Official N2HJD/R Repeater Site made by Bob Shewell N2HJD/R Owner/Operator for a lot more information.

Frequency (Output/Input) Courtesy Tone Repeater Site Remarks
29.68/29.58 Very Low Beep, Ascending Rx-N2HJD's House
Tx-Near MCC (same as 53.33 TX)
Part Time Link up (see below)
Split Site
Run 123.0Hz PL for +10dB
53.33/52.33 Very Low Beep, Fast Descending Rx-Cobbs Hill
Tx-Near MCC (same as 29.68 TX)
Split Site
Run 123.0Hz PL for +6dB
145.41/144.81 Low Beep, Ascending Offline Can be in 110.9Hz PL
- Offset
Low Beep, Fast Descending N2HJD's House Can be in 110.9Hz PL
+ Offset
High Beep, Fast Ascending Rx-Cobbs Hill This is just a translator, transmitter is at N2HJD's House
Can be in 110.9Hz PL
147.075/147.675 Med-Low Beep, Ascending Brockport, NY Near Rts. 31 and 31A Requires 110.9 PL tone.
224.58/222.98 Descending...
Slow- W/O 110.9 PL
Fast- W/ 110.9 PL
Hub Site: Frontier Telephone, Near N. Plymouth and Inner Loop Usually doesn't need PL tone.
110.9Hz PL required at Night (see below)
442.8/447.8 Slow Ascending (Main voting receiver)
Fast Ascending (Cobbs Hill voting receiver)
Fast Descending (equal vote)
Hub Site: Frontier Telephone, Near N. Plymouth and Inner Loop Always requires 110.9Hz PL tone.
442.9/447.9 High Beep, Fast Descending Honeoye Gun Club: Honeoye, NY Can be in 110.9Hz PL
444.7/449.7 Med. Beep, Fast Descending N2HJD's House
RX Online Only, TX Low Power
Can be in 110.9Hz PL
442.925/447.925 (Forthcoming) Macedon, NY  
1288.0/1268.0 Med Beep, Ascending N2HJD's House Experimental, Vertical Separation, Sometimes Online and linked
N/A (pause), Ascending N/A IRLP

(This table is accurate as of 7/7/2007)


RC-850 Controller Operating States

State 0-Daytime Mode (6:01 Am-12:00 Am) Normal Mode, All the repeaters are linked together. All functions are available.

State 5 Same as State 0, but locks the remote base frequency and shuts off some activity timers. Reverts to Slow Ascending Courtesy Tone for most system key-ups.

State 8-Public Net Mode Net Mode used for regular weekly nets. Uses a DTMF beep as the main courtesy tone, with or without a beep in front of it depending on the input used.

State 9-Night Time Mode (12:01 Am-6:00 Am) 224.58 is in 110.9 PL mode during this time, touch-tone® access RRRA User Code to put that repeater input into open carrier mode for 5 minutes. That function only works at night. All voice functions are turned off at night; examples are time, temp, or any other voice response code. Autopatch and autodial still work, however you will hear the controller respond in CW.

N2HJD/R Ten Meter Repeater

Normal Mode: The 29.68 transmitter is disconnected from the rest of the repeater system. When the 29.58 local receiver senses activity, the transmitter will then link onto the system. The transmitter will stay linked until approx. 10 minutes have elapsed without any activity on the ten meter repeater. (The PL tone that may be required is 123.0 Hz).

Net Mode: The transmitter is linked up for the weekly nets that are on the repeater for 1 hour. Requires control operator to put TX into this mode.

Autopatch Mode: The 29.58 main receiver is disconnected while you are on the phone patch. Thus meaning you are protected from noise on the HF port while using the autopatch. However making autopatches from 10 meters will not work either.

Using the Ten Meter Repeater from another input:
To use the ten meter repeater from another port of the system you just need to use the "up" and "down" commands. (Not available during nighttime mode state 9). The "up" command will link the TX on to the whole system for 15 minutes.
Note: You DO NOT need to have ten meter band privileges to use these commands. You are operating under N2HJD's privileges when using the repeater. Take special care not to "hog" DX propagation that comes on the repeater. Remember the condition may change very quickly causing others to miss out on the opportunity.

(N2HJD/R information updated by myself, KB2VGF on 8/12/2006. Any other questions ask Bob N2HJD or me at .) See the main packet for more information on this repeater and the other repeaters in the RRRA family.